how to add/edit books that contain multiple episodes of a series?

[Frank]

There's a series of 8 novels making up one huge Bildungsroman by a Dutch novelist, the so called Anton Wachter cycle by Simon Vestdijk. Someone already seems to have created this series:
https://www.goodreads.com/series/1618...

However, the separate volumes have also been published in the 90s in a four volume format, each volume containing two of the eight novels:
https://www.goodreads.com/book/show/4...
https://www.goodreads.com/book/show/4...
https://www.goodreads.com/book/show/3...
https://www.goodreads.com/book/show/3...

And then later still the series was reissued in two volumes, each containing four novels. Only the first volume of these seems to have been entered in Goodreads as yet:
https://www.goodreads.com/book/show/4...

My question: is there a way for me to edit the book data for each of these volumes in such a way that they are linked to the series of the first URL? It's not immediately clear to me how I can do that.
Or does someone else have to do that?

MTIA.

[rivka, Former Moderator]

Any librarian can add books to an existing series. See the relevant Manual sections here: https://www.goodreads.com/help/show/3...


Frank wrote: "However, the separate volumes have also been published in the 90s in a four volume format, each volume containing two of the eight novels:"

Those would be added after all the individual volumes, marked as non-primary, and numbered 1-2, 3-4, etc.